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US 12,682,278 B2Granted
Method, apparatus, and computer program for creating standardized brainwave image for training artificial intelligence model
AssigneeImedisync, Inc.
InventorsSeung Wan Kang, Ukeob Park, Tae-gyun Jeong
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Abstract
Provided are a method, apparatus, and computer program for creating a standardized brainwave image for training an artificial intelligence model. The method of creating a standardized brainwave image for training an artificial intelligence model executed by a computing device according to various embodiments of the present invention includes collecting a plurality of brainwave signals of a user, processing the plurality of collected brainwave signals, and creating a brainwave image using the plurality of processed brainwave signals.
Claims9
A method of creating a standardized brainwave image for training an artificial intelligence model executed by a computing device, the method comprising:
- collecting a plurality of brainwave signals of a user in a plurality of frequency bands through a plurality of brainwave measurement channels, wherein the plurality of brainwave measurement channels are configured to be attached to a plurality of locations of a head of the user;
- processing the plurality of collected brainwave signals;
- creating a brainwave image using the plurality of processed brainwave signals;
- and
- performing training of an artificial intelligence (AI) model based on the brainwave image, and using the AI model to generate output data indicative of a state information of another user based on input of another user,
- wherein processing the plurality of collected brainwave signals includes:
- calculating index values for the plurality of collected brainwave signals;
- preprocessing the plurality of brainwave signals from which the index values are calculated, and filtering, among the plurality of brainwave signals from which the index values are calculated, a brainwave signal in a predetermined frequency band;
- and
- determining, based on the calculated index values, pixel values corresponding to the plurality of preprocessed brainwave signals respectively,
- wherein creating the brainwave image includes creating the brainwave image by using the determined pixel values,
- wherein creating the brainwave image by using the determined pixel values includes creating the brainwave image by arranging, in a preset template, the pixel values determined for the plurality of preprocessed brainwave signals respectively,
- wherein, in the preset template, pixel values according to a change in frequency are arranged on a first axis, and pixel values according to a change in position of a region of interest of a brain of the user are arranged on a second axis perpendicular to the first axis,
- wherein a preset reference frequency value is set as a central axis of the first axis,
- wherein pixel values corresponding to brainwave signals collected from a left region of the brain are arranged in a left region with respect to the central axis, and pixel values corresponding to brainwave signals collected from a right region of the brain are arranged in a right region with respect to the central axis,
- wherein creating the brainwave image by arranging the determined pixel values in the preset template includes:
- dividing the first axis, wherein the dividing the first axis comprises:
- generating a plurality of unit sections by dividing, based on frequency bands, a left side of the first axis with respect to the central axis, and further dividing, based on the frequency bands, a right side of the first axis with respect to the central axis, the frequency bands corresponding to types of the brainwave signals,
- wherein the plurality of unit sections have a same length regardless of a range of the frequency bands corresponding to the types of the brainwave signals, and
- wherein dividing the first axis includes:
- based on a request to extend a length of a first unit section among the plurality of unit sections, extending the length of the first unit section, and shortening lengths of the remaining unit sections by the extended length of the first unit section, and
- based on a request to shorten a length of a second unit section among the plurality of unit sections, shortening the length of the second unit section, and extending the lengths of the remaining unit sections by the shortened length of the second unit section.
19 more elements
An apparatus for creating a standardized brainwave image for training an artificial intelligence model, the apparatus comprising:
- a processor,
- a memory;
- and
- a computer program loaded into the memory and executed by the processor to cause the apparatus to perform operations comprising:
- collecting a plurality of brainwave signals of a user in a plurality of frequency bands through a plurality of brainwave measurement channels, wherein the plurality of brainwave measurement channels are configured to be attached to a plurality of locations of a head of the user;
- processing the plurality of collected brainwave signals;
- creating a brainwave image using the plurality of processed brainwave signals;
- and
- performing training of an artificial intelligence (AI) model based on the brainwave image, and using the AI model to generate output data indicative of a state information of another user based on input of another user,
- wherein processing the plurality of collected brainwave signals includes:
- calculating index values for the plurality of collected brainwave signals,
- preprocessing the plurality of brainwave signals from which the index values are calculated, and filtering, among the plurality of brainwave signals from which the index values are calculated, a brainwave signal in a predetermined frequency band, and
- determining, based on the calculated index values, pixel values corresponding to the plurality of preprocessed brainwave signals respectively,
- wherein creating the brainwave image includes creating the brainwave image by using the determined pixel values,
- wherein creating the brainwave image by using the determined pixel values includes creating the brainwave image by arranging, in a preset template, the pixel values determined for the plurality of preprocessed brainwave signals respectively, and
- wherein, in the preset template, pixel values according to a change in frequency are arranged on a first axis, and pixel values according to a change in position of a region of interest of a brain of the user are arranged on a second axis perpendicular to the first axis,
- wherein a preset reference frequency value is set as a central axis of the first axis,
- wherein pixel values corresponding to brainwave signals collected from a left region of the brain are arranged in a left region with respect to the central axis, and pixel values corresponding to brainwave signals collected from a right region of the brain are arranged in a right region with respect to the central axis,
- wherein creating the brainwave image by arranging the determined pixel values in the preset template includes:
- dividing the first axis, wherein the dividing the first axis comprises:
- generating a plurality of unit sections by dividing, based on frequency bands, a left side of the first axis with respect to the central axis, and further dividing, based on the frequency bands, a right side of the first axis with respect to the central axis, the frequency bands corresponding to types of the brainwave signals,
- wherein the plurality of unit sections have a same length regardless of a range of the frequency bands corresponding to the types of the brainwave signals, and
- wherein dividing the first axis includes:
- based on a request to extend a length of a first unit section among the plurality of unit sections, extending the length of the first unit section, and shortening lengths of the remaining unit sections by the extended length of the first unit section, and
- based on a request to shorten a length of a second unit section among the plurality of unit sections, shortening the length of the second unit section, and extending the lengths of the remaining unit sections by the shortened length of the second unit section.
22 more elements
A non-transitory computer-readable medium having stored therein a computer program for causing a computing device to execute a process of creating a standardized brainwave image for training an artificial intelligence model, the process comprising:
- collecting a plurality of brainwave signals of a user in a plurality of frequency bands through a plurality of brainwave measurement channels, wherein the plurality of brainwave measurement channels are configured to be attached to a plurality of locations of a head of the user;
- processing the plurality of collected brainwave signals;
- creating a brainwave image using the plurality of processed brainwave signals;
- and
- performing training of an artificial intelligence (AI) model based on the brainwave image, and using the AI model to generate output data indicative of a state information of another user based on input of another user,
- wherein processing the plurality of collected brainwave signals includes:
- calculating index values for the plurality of collected brainwave signals,
- preprocessing the plurality of brainwave signals from which the index values are calculated, and filtering, among the plurality of brainwave signals from which the index values are calculated, a brainwave signal in a predetermined frequency band, and
- determining, based on the calculated index values, pixel values corresponding to the plurality of preprocessed brainwave signals respectively,
- wherein creating the brainwave image includes creating the brainwave image by using the determined pixel values,
- wherein creating the brainwave image by using the determined pixel values includes creating the brainwave image by arranging, in a preset template, the pixel values determined for the plurality of preprocessed brainwave signals respectively, and
- wherein, in the preset template, pixel values according to a change in frequency are arranged on a first axis, and pixel values according to a change in position of a region of interest of a brain of the user are arranged on a second axis perpendicular to the first axis,
- wherein a preset reference frequency value is set as a central axis of the first axis,
- wherein pixel values corresponding to brainwave signals collected from a left region of the brain are arranged in a left region with respect to the central axis, and pixel values corresponding to brainwave signals collected from a right region of the brain are arranged in a right region with respect to the central axis,
- wherein creating the brainwave image by arranging the determined pixel values in the preset template includes:
- dividing the first axis, wherein the dividing the first axis comprises:
- generating a plurality of unit sections by dividing, based on frequency bands, a left side of the first axis with respect to the central axis, and further dividing, based on the frequency bands, a right side of the first axis with respect to the central axis, the frequency bands corresponding to types of the brainwave signals,
- wherein the plurality of unit sections have a same length regardless of a range of the frequency bands corresponding to the types of the brainwave signals, and
- wherein dividing the first axis includes:
- based on a request to extend a length of a first unit section among the plurality of unit sections, extending the length of the first unit section, and shortening lengths of the remaining unit sections by the extended length of the first unit section, and
- based on a request to shorten a length of a second unit section among the plurality of unit sections, shortening the length of the second unit section, and extending the lengths of the remaining unit sections by the shortened length of the second unit section.
18 more elements
Dependencies are inferred from the claim text.